A native of McHenry, Illinois, Macek was 26 years old when he launched a two-state murder spree in 1974. On August 15 of that year, in Fontana, Wisconsin, he cornered Paula Cupit, a 24-year-old hotel maid, in one of the rooms she was assigned to clean, beating her and stabbing her in the heart before he began to gnaw and mutilate her body. [ReadOn]

On December 29, 1997, police arrested and charged Orville Lynn Majors, a 36-year-old former male nurse, with lethally injecting six patients at an Indiana hospital. No stranger to deadly nursing care, Orville lost his nurse's license in 1995 after 130 of 147 elderly patients died in his care. [ReadOn]

A man already in prison for helping his sister in a killing, admitted to killing seven people during a bar robbery and three others in separate attacks. Johnnie Malarkey, 28, pleaded guilty to shooting seven people to death at a Fresno club in 1993 and to three other killings that year. In exchange for his plea, prosecutors agreed not to seek the death penalty. [ReadOn]

It was the autumn of 1920 when two black farm workers contacted the U.S. Justice Department in Atlanta and told federal agents a harrowing story of forced servitude and brutality on the William's farm. Once John Williams learned of this investigation he and Clyde Manning started the killing. [ReadOn]

From Left: Manson, Atkins, Beausoleil, Fromme, Watson, van Houten, Kasabian, Krenwinkel, Brunner

Self-styled guru and leader of the 1960s religious cult the Manson Family, Charles Manson is a convicted serial killer who never actually killed any of his victims himself.

[ReadOn]

Born in 1962, Cynthia Coffman was the privileged daughter of a St. Louis businessman, raised by her parents as a devout Catholic. Abortion was unthinkable when she got pregnant at age seventeen, and she was forced into a loveless marriage, enduring five years of domestic captivity before she left home and fled west, traveling with little more than her car and the clothes on her back. [ReadOn]

A 49-year-old waitress in Montgomery, Alabama, Martin confessed during March 1956 to the arsenic murders of her mother , two of her five husbands, and three of her own children. Husband number five had been more fortunate than his predecessors, surviving the dosage that left him paralyzed from the waist down, confined to a hospital in Biloxi, Mississippi. [ReadOn]

On June 16, 1972, a Santa Barbara police officer was shot and wounded by a gunman fleeing the scene of an $11,000 supermarket robbery. Witnesses recalled the license number of the bandit's car, and it was traced to an address in suburban Goleta, occupied by 47-year-old Sherman McCrary, his wife Carolyn, and their 19-year-old son Danny. [ReadOn]

In six weeks time, between July and August 1975, 27 patients at the Veterans Administration hospital in Ann Arbor, Michigan, were stricken with respiratory arrests that left them unable to breathe without mechanical aid. Some patients suffered more than one attack, eleven dying by the time physicians realized the incidents were inexplicable as natural phenomena. [ReadOn]

Blanche Taylor Moore of Alamance County, North Carolina, could not have fashioned herself as another Nannie Doss any better than if her predecessor came back to life herself. But, while Nannie was basically a congenial sort well, on the surface Blanche leaned towards the moody and grim. [ReadOn]

Dr. Holmes liked to swindle insurance companies.  Murder for profit was his game, but he also grew to relish his little hobby so much that he began to include torture and other types of experiments prior to death. His real name was Herman Webster Mudgett, born in New Hampshire in 1860, and he got into the murder business around the same time as Jack the Ripper.  [ReadOn]